{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX16821BATI+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX16821BATI","canonicalUrl":"https://icboms.com/analog-devices/MAX16821BATI","factsUrl":"https://icboms.com/api/mcp/products/MAX16821BATI%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX16821BATI+, DC DC Controller, PWM Dimming, Topology SEPIC/Buck/Boost, Frequency 125kHz ~ 1.5MHz, 1 Output, 28-WFQFN Exposed Pad, -40°C to 125°C.","salesMarkdown":"## What the MAX16821BATI+ actually does The MAX16821BATI+ from Maxim Integrated is a DC DC controller IC designed specifically for LED backlighting applications. It is a controller, not a converter with integrated switches — meaning you supply the external MOSFET and inductor, and the chip handles the PWM dimming and regulation loop. The part supports three topologies — SEPIC, step-down (buck), and step-up (boost) — which gives a single BOM line the flexibility to drive LED strings in series or parallel depending on the input rail and output voltage needed. The switching frequency is programmable from 125 kHz to 1.5 MHz, letting you trade inductor size and switching losses against each other. A higher frequency shrinks the magnetics but increases FET gate-drive loss; a lower frequency improves efficiency at the cost of a larger inductor. The single output drives an external N-channel MOSFET, and the PWM dimming input allows direct LED brightness control without an external DAC or microcontroller PWM pin. The supply voltage range spans 4.75 V to 28 V. The operating temperature range is -40°C to 125°C. ## Lifecycle and sourcing reality The MAX16821BATI+ carries an active lifecycle status with ROHS3 compliance. No stock or lead-time number is published here because the spot market moves daily; a quick RFQ will return the real picture.","metaTitle":"MAX16821BATI+ LED Driver Controller, PWM Dimming","metaDescription":"MAX16821BATI+ DC DC controller IC for LED backlighting. PWM dimming, 4.75V-28V supply, SEPIC/buck/boost, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"DC DC Controller","Dimming":"PWM","Package":"Tube","Topology":"SEPIC, Step-Down (Buck), Step-Up (Boost)","Frequency":"125kHz ~ 1.5MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"28-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Number of Outputs":"1","Internal Switch(s)":"No","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage - Supply (Max)":"28V","Voltage - Supply (Min)":"4.75V","Supplier Device Package":"28-TQFN (5x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.98","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.98000","currency":"USD"},{"qty":10,"price":"$7.20900","currency":"USD"},{"qty":25,"price":"$6.87400","currency":"USD"},{"qty":100,"price":"$5.96870","currency":"USD"},{"qty":250,"price":"$5.70044","currency":"USD"},{"qty":500,"price":"$5.19746","currency":"USD"},{"qty":1000,"price":"$4.52682","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX16821-MAX16821C.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the operating frequency range of MAX16821BATI+?","answer":"This range lets you trade inductor size against switching losses — higher frequency shrinks magnetics, lower frequency improves efficiency."},{"question":"What is MAX16821BATI+'s listed type on this component line?","answer":"The listed type is DC DC Controller. It is a controller IC, not a converter with integrated switches — you supply the external MOSFET and inductor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX16821BATI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX16821BATI when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}